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fact-minute

Grades 1–5 · printable + timed

Adding 6 Timed Test

Print it with the answer key on page 2, or run the timer here.

Operation
Fact range
Problems
Time limit

Addition · 6s · 20 problems · 1 minute NameDateScore
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
Answer key · Addition · 6s · 20 problems NameDate
  1. 1 6 + 1 7
  2. 2 6 + 3 9
  3. 3 2 + 6 8
  4. 4 6 + 5 11
  5. 5 10 + 6 16
  6. 6 6 + 8 14
  7. 7 6 + 5 11
  8. 8 3 + 6 9
  9. 9 6 + 10 16
  10. 10 10 + 6 16
  11. 11 4 + 6 10
  12. 12 6 + 6 12
  13. 13 10 + 6 16
  14. 14 4 + 6 10
  15. 15 3 + 6 9
  16. 16 9 + 6 15
  17. 17 6 + 0 6
  18. 18 12 + 6 18
  19. 19 6 + 3 9
  20. 20 6 + 1 7
0 correct of 20

Correct 0 Wrong 0 Blank 20

0:00 elapsed of 1:00

Elapsed 0s Left 60s

A timed sheet on adding 6

Adding 6, from 6 + 0 to 6 + 12. Every problem on the sheet is drawn from that set and nothing outside it.

Choose 20, 50 or 100 problems and a limit of 1, 2 or 5 minutes, then print the sheet with its answer key on page two, or start the timer and type into the same grid. The problems are drawn again every time the page loads, so a second sheet is not a copy of the first. How the counts and limits work is on its own page, along with what a timed test does and does not measure.

Thirteen rows, with the answers

Adding 6: all thirteen facts and their answers.
Problem Answer
6 + 0 6
6 + 1 7
6 + 2 8
6 + 3 9
6 + 4 10
6 + 5 11
6 + 6 12
6 + 7 13
6 + 8 14
6 + 9 15
6 + 10 16
6 + 11 17
6 + 12 18

Where adding 6 goes wrong

Adding 6 is the first range where most cells cross ten — 6 + 5 already does. The strategy children reach for is making ten and adding what is left (6 + 8 becomes 6 + 4 + 4), and once that move is solid the 7s, 8s and 9s come loose along with it. That is why this sheet is worth running before the harder three.

Three that come up

What is the make-ten strategy?
Break the second number so the first reaches ten. 6 + 8 becomes 6 + 4 + 4, which is 10 + 4.
Why does adding 6 feel like a jump in difficulty?
Because most of its sums cross ten, which needs a strategy rather than a count.
Does practicing 6s help other tables?
Yes. Make-ten transfers straight to adding 7, 8, and 9.

What the standards and the critics actually say

Common Core State Standards for Mathematics (PDF), page 19 — 2.OA.B.2 “By end of Grade 2, know from memory all sums of two one-digit numbers.” thecorestandards.org — CCSSI_Math Standards.pdf

NCTM — Procedural Fluency in Mathematics (position statement) “Timed tests do not assess fluency and can negatively affect students, and thus should be avoided.” nctm.org — Procedural Fluency in Mathematics

youcubed — Fluency Without Fear “For about one third of students the onset of timed testing is the beginning of math anxiety.” youcubed.org — Fluency Without Fear